Data Specification on Orthoimagery – Draft ... - INSPIRE - Europa

INSPIRE Reference: D2.8.II.3_v2.0
TWG-OI <strong>Data</strong> <strong>Specification</strong> on Orthoimagery 2011-06-15 Page 62
D.2.2 Orthoimages derived from single input images (with tiling)
This case is similar to the previous, except that every orthoimage is divided into two tiles, so that the
range set of each tile is stored in only one image file.
Y
X
Figure 2 – orthoimages derived from single input images with tiling (tile extents in green)
Tiling does not affect the structure of the data set. As above, each orthoimage should be modelled as
an instance of the feature type OrthoimageCoverage, without additional instantiations.
Component Number of instances Comment
OrthoimageCoverage 4
Seamline 0 Not applicable
OrthoimageAggregation 0 Not applicable
D.2.3 Mosaic of several input images without information about seamlines (no
tiling)
The orthoimagery data set contains a seamless orthoimage resulting from the mosaicking of several
input images. However, the data producer was not in position to provide the delineation of the
seamlines at lower cost. The range set of the full mosaic is embedded in a single image file.
Y
X
Figure 3 – mosaic without seamlines